ML20140C904

Forwards Request for Addl Info Re Environ Qualification of safety-related Equipment.Response Requested within 30 Days of Ltr Receipt

ML20140C904
Person / Time
Site:	Calvert Cliffs
Issue date:	05/31/1984
From:	John Miller Office of Nuclear Reactor Regulation
To:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
References
NUDOCS 8406190630
Download: ML20140C904 (4)

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MAY 31 G34 Docket Nos. 50-317 Distribution:

and 50-318 p adcket File-Reading File NRC PDR  :

LPDR Mr. A. E. Lundvall PKreutzer Vice President - Supply DJaffe Baltimore Gas & Electric Co. OELD P. O. Box 1475 DEisenhut Baltimore, Maryland 21203 EJordan JNGrace

Dear Hr. Lundvall:

ACRS 10 Gray File In the process of reviewing your May 14, 1984 submittal on environmental qualifications of safety related equipment, we have found it necessary to request additional information. Please provide your written response to the enclosed request for additional information within 30 days following receipt of this letter.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore OMB clearance is not required under P. L.96-511.

Sincerely, Orisinal S9ned by J. R. 25ec James R. Miller, Chief Operating Reactors Branch No. 3 Division of Licensing

Enclosure:

Request for Additional Information cc w/ enclosure:

See next page i

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PK }tzer u DJaf' ; J31 ler 05 o/84 05Mja84 05/ /84 P

Baltimore Gas and Electric Company cc:

James A. Biddison, Jr. Ms. Mary Harrison, President G:neral Counsel Calvert County Board of County Commissioners Baltimore Gas and Electric Company Prince Frederick, MD 20768 P. O. Box 1475 Baltimore, MD 21203 U. S. Environmental Protection Agency Region Ill Of fice G20rge F. Trowbridge, Esquire At tn: Regional Radiation Representative Shaw, Pittman, Potts and Trowbridge Curtis Building (Sixth Floor) 1800 M Street, N. W. Sixth and Walnut Streets Washington, D. C. 20036 -

Philadelphia, PA 19106 Mr. R. C. L. Olson, Principal Engineer Mr. Ralph E. Architzel Nuclear Licensing Analysis Unit Resident Reactor Inspector Baltimore Gas and Electric Company NRC Inspection and Enforcement Room 922 - GAE Building P. O. Bos 437 -

P. O. Box 1475 Lusby, MD 20657 Bal timore, MD 21203 Mr. Charles B. Brinkman Mr. Leon B. Russell Manager '- Washington Nuclear Operations Plant Superintendent Combustion Engineering, Inc.

Calvert Cliffs Nuclear Power Plant 7910 Woodmont Avenue Maryland Routes 2 & 4 Bethesda, MD 20814 Lusby, MD 20657 Mr. J. A. Tiernan, Manager Bechtel Power Corporation Nuclear Power Department

' Attn: Mr. J. C. Ventura Calvert Cliffs Nuclear Power Plant Calvert Cliffs Project Engineer Maryland Routes 2 & 4 15740 Shady Grove Road Lusby, MD 20657 Gaithersburg, MD 20760 Mr. W. J. Lippold, Supervisor Combustion Engineering, Inc. Nuclear Fuel Management Attn: Mr. R. R. Ilills, Manager Baltimore Gas and Electric Company Engineering Services Calvert Cliffs Nuclear Power Plant P. O. Box 500 P. O. Box 1475 Windsor, CT 06095 Bal timore, Msryland 21203 Mr. R. E. Denton, General Supervisor Training & Technical Services Calvert Cliffs Nuclear Power Plant Maryland Routes 2 & 4 Lusby, MD 20657 Mr. R. M. Douglass, Manager Quality Assurance Department Baltimore Gas & Electric Company Fort Smallwood Road Complex Administrator, Power Plant Siting Program Energy and Coastal Zone Administration P. O. Box 1475 Department of Natural Resources Bal timore, MD 21203 Tawes State Office Building Mr. S. M. Davis, General Supervisor

• Op; rations Quality Assurance' Calvert Cliffs Nuclear Power Plant Regional Administrator Maryland Routes 2 & 4 Nuclear Regulatory Comnission, Region I Lusby, MD 20657 Office of Executive Director for Operations 631 Park Avenue King of Prussia, Pennsylvania 19406

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! l ENVIRONMENTAL ()UALIFICATION OF EQUIPMENT IMPORTANT TO SAFETY REQUEST FOR ADDITIONAL INFORMATION )

1. Submit all applicable JCO's that are currently being relied upon and certify the following for each JC0 associated with equipment that is assumed to fail:

No significant degradation of any safety function or misleading information to the operator as a result of failure of equipment under the accident environment resulting frem,a design basis event will occur.

2. Certify that, in performing the review of the methodology to identify equipment within the scope of 10 CFR 50.49(b)(2),

the following steps have been addressed:

a. A list was generated of safety-related electric equipment as

defined in paragraph (b)(1) of 10 CFR 50.49 required to remain functional during or following~ design-basis Loss of Coolant Accident

(LOCA) or High Energy Line Break (HELB) Accidents. The LOCA/HELB j accidents are the only design-basis accidents which result in

significantly adverse environments which result for electrical l equipment which is required for safe shutdown or accident i mitigation. The list was based on reviews of the Final Safety

! Analysis Report (FSAR), Technical Specifications, Emergency Operating Procedures, Piping and Instrumentation Diagrams (P& ids),

j and electrical distribution diagrams;

b. The elementary wirino diagrams of the safety-related electrical equipment identified in Item a, above, were reviewed to identify any auxiliary devices electrically. connected directly into the control or power circuitry of the safety-related equipment (e.g., automatic trips) whose failure due to postulated environmental conditions I could prevent required operation of the safety-related equipment and;

{ c. The operation of the safety-related systems and equipment was reviewed to identify any directly mechanically connected auxiliary i system with electrical components which are necessary for the i required. operation of the safety-related equipment (e.g., cooling

water or lubricating systems). This involved the review of P& ids, l component technical manuals, and/or systems descriptions in the FSAR.

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d. Nonsafety-related electrical circuits indirectly associated with the electrical equipment. identified in Item a, above, by common

, power supply or physical proximity were considered by a review of the

! electrical design including the use of applicable industry standards (e.g., IEEE, NEMA, ANSI, UL, and NEC) and the use of properly

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l coordinated protective relays, circuit breakers, and fuses for

! electrical fault protection. .

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3. Provide certification that all design basis events which could i

potentially result in a harsh environment, including flooding outside electricalcontainment, were equipment within theaddressed scope of 10inCFR identifying 50.49 (b)safety-(related 1).

4.

Certify)that 50.39(b (3) isthe allelectrical R.G.1.97equipment Category 1within and 2the scope ofor10 equipment CFR that justification has been provided for any such equipment not included in the environmental qualification program.

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